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An electronic logic unit incorporated inside the primary electromagnetic circuit breaker of a remote control circuit breaker system serves as the controlling interface between that unit and the remote pilot control-circuit breaker unit.
The logic unit responds to an overload trip open of the main circuit breaker by subjecting the pilot unit to a controlled value of simulated overload current in order to cause the latter to trip open and provide indication of the occurrence of overload tripping in the main circuit breaker, in addition to directing main circuit breaker operation to provide closing and opening of the same in correspondence with the operation of the pilot unit.
The global aircraft remote control circuit breaker market accounted for $XX Billion in 2021 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2022 to 2030.
The E-T-A 4930, a new remotely controlled, single pole circuit breaker (RCCB) authorized by MIL-PRF-83383 for the protection of aviation electrical systems and other high performance applications, has been introduced by E-T-A Circuit Breakers. The use of a conventional, manually operated aircraft-style thermal circuit breaker, such as the E-T-A types 4120 or 483, allows for low current remote switching, allowing the 4930 to be placed close to the system it is protecting while also significantly reducing the need for wiring harnesses and weight.
To switch the contacts, the E-T-A 4930 uses an integrated bi-stable linear motor. It will synchronize with the 4120/483 circuit breaker and reflect the status of the controlling circuit breaker in terms of ON/OFF status. A deactivated 4930 will assume the same switching status as the control circuit breaker if power is provided to it. If the control circuit breaker trips in the case of a load circuit failure, the RCCB will also trip, giving a visual indication of the fault.
The switching circuits of the RCCB won’t cycle between ON and OFF in the case of a short circuit. The new E-T-A 4930 Remote Control Circuit Breaker can be ordered with or without auxiliary contacts that can provide external signaling, and it is available in a range of current ratings from 5A to 100A. It is temperature-compensated; it has a bi-metal actuator that triggers the mechanism in a certain amount of time when there is an overcurrent.
